What should be the entry pain intensity criteria for chronic pain clinical trials? An IMMPACT update

Affiliations

• ¹ Department of Anesthesiology, Critical Care, and Pain Management, Hospital for Special Surgery, New York, NY, United States.
• ² Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, NY, United States.
• ³ Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, United States.
• ⁴ Department of Neurology, University of Kiel, Kiel, Germany.
• ⁵ Department of Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Boston, MA, United States.
• ⁶ Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, ON, United States.
• ⁷ School of Psychology, University of the Witwatersrand, Johannesburg, South Africa.
• ⁸ Department of Anesthesiology, Tufts University, Boston, MA, United States.
• ⁹ Department of Surgery and Cancer, Imperial College London, London, United Kingdom.